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The PEBA-90A (Polyether Block Amide) from eSun is a highly elastic specialty filament with exceptional resilience, outstanding cold impact toughness, and great elongation capacity of over 520% at break (XY). It combines the flexibility of an elastomer with the mechanical resistance of an engineering plastic and is therefore ideal for applications where high resilience, shock absorption, and load-bearing are required even at low temperatures. In model building, PEBA-90A has established itself as a superior tire material: The traction of printed tires is about three times higher than comparable TPU tires, which translates directly into significantly better grip and more precise driving behavior. A decisive advantage over TPU is the largely constant material hardness over a wide temperature range—TPU tires become noticeably harder in winter and lose grip, while they become softer in summer and tend to deform; PEBA-90A maintains its elastic properties almost unchanged in both cold and warm conditions.

Note: With transparent PEBA products, slight color differences may occur between different production batches. Occasionally, small black dots may appear along the lines of transparent parts; this is a normal manufacturing phenomenon and does not affect product performance or normal usage.

Recommended Accessories:

• Filament Dry Box

Features:

• Exceptionally high resilience and elasticity, comparable to technical rubber, for damping and spring elements
• Elongation at break of over 520% (XY) for extreme shape changes without material failure
• Excellent cold impact toughness and cold resistance for use in low temperature applications and outdoors
• Low density of 1.01 g/cm³ for lightweight, elastic components in sports and medical fields
• Consistent material properties over a wide temperature range—no hardening in winter and no softening in summer like TPU
• High abrasion and wear resistance for durable, mechanically stressed elastomer components
• Vicat softening point of 120 °C (10 N) for good heat deflection temperature despite high flexibility

Application Examples:

• Model tires for RC cars, crawlers, and buggies with three times better traction than TPU tires and consistent driving behavior at any outside temperature
• Insoles, shoe soles, and cushioning elements for sports shoes and orthopedic applications
• Medical orthoses, splints, and flexible support structures with individually adapted geometry
• Shock absorbers, buffers, and vibration isolators for machine and robotics applications
• Flexible industrial components such as seals, protective covers, and flexible connecting elements

Recommended Printing Parameters:

• Printing temperature: 230–260 °C, recommended 245 °C
• Heated bed: 60–90 °C
• Fan: 10–50%
• Print speed: 25–110 mm/s
• Enclosure: recommended
• Drying recommendation: 70 °C, at least 6 hours

Documentation:

• Data sheet filament (PDF)

Technical Data:

• Manufacturer: eSun
• Manufacturer SKU: PEBA-90A175W08Y1
• Color: White
• Filament Weight: 800 g
• Diameter: 1.75 mm
• Tolerance: ±0.05 mm
• Shore hardness: 90A
• Density: 1.01 g/cm³
• Melt flow index: 10–16 g/10 min
• Vicat softening point: 120 °C (10 N) / 110 °C (Standard)
• Tensile strength (XY): > 16.5 MPa
• Tensile strength (Z): 7.5 MPa
• Elongation at break (XY): > 520%
• Elongation at break (Z): 150%
• Spool diameter outer: 200 mm
• Spool width: 67 mm
• Spool inner diameter: 53 mm
• Package dimensions: 205 × 215 × 75 mm
• Gross weight: 1195g

Scope of Delivery:

• 1× PEBA-90A White Filament 1.75mm 800g eSun